Echo: linux: security update to 6.1.159-1

medium Tenable Cloud Security Plugin ID 455286

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- In the Linux kernel, the following vulnerability has been resolved: mtdchar: fix integer overflow in
read/write ioctls The "req.start" and "req.len" variables are u64 values that come from the user at the
start of the function. We mask away the high 32 bits of "req.len" so that's capped at U32_MAX but the
"req.start" variable can go up to U64_MAX which means that the addition can still integer overflow. Use
check_add_overflow() to fix this bug. (CVE-2025-68237)

Solution

Update the linux library and its related packages to version 6.1.159-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-68237

Plugin Details

Severity: Medium

ID: 455286

Version: Revision 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.42

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2025-68237

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/17/2025

Vulnerability Publication Date: 12/9/2025

Reference Information

CVE: CVE-2025-68237